I have some troublesome temperature sensors on a third party system that sometimes stop updating. They simply return the same value for long periods of time. It would be really handy to be able to detect that the sensor is effectively "flat lining" and trigger a notification.

I know the best answer is to fix those sensors but they are part of someone else's system and are beyond my remit.

Any ideas?

Thanks.

Article Comments

Hi,

I'm afraid that this is not possible. PRTG can create a delta for the last two values, but cannot create and compare deltas for multiple scanning results, sorry.


Feb, 2015 - Permalink

You could do this with a Custom Sensor using the API.

Get the temperature sensor result and store it to disk, in the next run compare the result with the storred result and set the Custom Sensor to an error state if they are equal.


Feb, 2015 - Permalink